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A new short borehole logging tool
https://nipr.repo.nii.ac.jp/records/2226
https://nipr.repo.nii.ac.jp/records/2226b64d3cf5-32ce-4ec7-8664-eef7d2c23fda
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
KJ00000012779 (540.2 kB)
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| Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 1994-03-01 | |||||||||
| タイトル | ||||||||||
| タイトル | A new short borehole logging tool | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | departmental bulletin paper | |||||||||
| ページ属性 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | P(論文) | |||||||||
| 著者名(英) |
Hansen,B. Lyle
× Hansen,B. Lyle
× Kelty,John R.
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| 著者所属(英) | ||||||||||
| en | ||||||||||
| Snow and Ice Research Group (SIRG), University of Nebraska/Snow and Ice Research Group (SIRG), University of Nebraska | ||||||||||
| 抄録(英) | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | A new borehole surveying tool was used to log the deep borehole at Camp Century, Greenland in July 1992. This new 6.35cm diameter instrument has a length of only 1m, allowing it to pass through bends in the sometimes highly deformed boreholes. The fluid filled borehole was logged to within 35m of bedrock, at a slant hole depth of 1350m. The inclination approached or exceeded 30° several times in the lower portion of the borehole. A microprocessor controlled data acquisition package (DAP) measures an internal and external thermistor and two orthogonally mounted inclinometers. The pressure transducer, which also includes a temperature measurement, and the fluxgate compass have independent microprocessor systems which are multiplexed through the DAP. A coaxial cable supplies DC power from the surface to the logger and provides MODEM communications between the DAP and a personal computer on the surface where the data from the DAP and slant hole depth data from the winch are used to compute a directional survey of the borehole. The surface computer provides plots of temperature, fluid pressure, hole inclination and azimuth as a function of true vertical depth as the hole is being surveyed. A set of centering springs can be easily added at the ends of the logging tool for use in boreholes where the inclination is less than 1 degree. | |||||||||
| 雑誌書誌ID | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AA00733561 | |||||||||
| 書誌情報 |
Memoirs of National Institute of Polar Research. Special issue 巻 49, p. 218-223, 発行日 1994-03 |
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